When you enable MFA in your online services (like email), you must provide a combination of two or more authenticators to verify your identity before the service grants you access. MFA is a layered approach to securing your online accounts and the data they contain. Implement multifactor authentication (MFA). Use multifactor authentication where possible.Note: CISA continually updates the KEV catalog with known exploited vulnerabilities. Fix the known security flaws in software. Check the CISA Known Exploited Vulnerabilities (KEV) Catalog for software used by your organization and, if listed, update the software to the latest version according to the vendor’s instructions.Foundational MeasuresĪll organizations should take certain foundational measures to implement a strong cybersecurity program: Any reference to specific commercial products, processes, or services by service mark, trademark, manufacturer, or otherwise, does not constitute or imply their endorsement, recommendation, or favoring by CISA. CISA does not endorse any commercial product or service. CISA does not attest to the suitability or effectiveness of these services and tools for any particular use case.

CISA applies neutral principles and criteria to add items and maintains sole and unreviewable discretion over the determination of items included. The list is not comprehensive and is subject to change pending future additions. CISA will implement a process for organizations to submit additional free tools and services for inclusion on this list in the future.

This living repository includes cybersecurity services provided by CISA, widely used open source tools, and free tools and services offered by private and public sector organizations across the cybersecurity community. critical infrastructure partners and state, local, tribal, and territorial governments, CISA has compiled a list of free cybersecurity tools and services to help organizations further advance their security capabilities. As part of our continuing mission to reduce cybersecurity risk across U.S.

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